[Qemu-devel] [PATCH v3 06/20] kvm: arm/arm64: Remove spurious WARN_ON

[Suzuki K Poulose]

On a 4-level page table pgd entry can be empty, unlike a 3-level
page table. Remove the spurious WARN_ON() in stage_get_pud().

Cc: Marc Zyngier <address@hidden>
Acked-by: Christoffer Dall <address@hidden>
Signed-off-by: Suzuki K Poulose <address@hidden>
---
 virt/kvm/arm/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 061e6b3..308171c 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -976,7 +976,7 @@ static pud_t *stage2_get_pud(struct kvm *kvm, struct 
kvm_mmu_memory_cache *cache
        pud_t *pud;
 
        pgd = kvm->arch.pgd + stage2_pgd_index(addr);
-       if (WARN_ON(stage2_pgd_none(*pgd))) {
+       if (stage2_pgd_none(*pgd)) {
                if (!cache)
                        return NULL;
                pud = mmu_memory_cache_alloc(cache);
-- 
2.7.4